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Increases Mag Capacity & Helps Mag Drop Free

Designed to give you the edge over your competition.

  • Patented, proven push-pin design
  • Quickly and easily attaches to and detaches from the magazine tube
  • No specialty tools or devices required for assembly/disassembly
  • One piece design, no small parts to keep track of
  • Fits the USPSA 140mm guage
  • Holds 20+1 rounds of 40S&W
  • Holds 23+1 rounds of 9mm
  • Easy to load into the gun with fully loaded magazine
  • Adds weight to magazine base to help mags drop free easier for faster reloads
  • Made in the USA

“GLOCK” is a federally registered trademark of Glock, Inc. and is one of many trademarks owned by Glock, Inc. or Glock Ges.m.b.H.  Brownells is an independent dealer of parts and accessories for Glock® pistols, and is not affiliated with or endorsed by Glock, Inc. or Glock Ges.m.b.H.  The use of Glock on this page is merely to advertise the sale of Glock parts or components.  As indicated in the product descriptions, not all parts and accessories on this site are official Glock products.


Big Book Catalog, Issue:70, Page:222

SPECS: CNC machined from billet aluminum. Hard Anodized

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Style: Base Pads, Magazine Springs

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